/* Light theme */
:root,
[data-theme="light"] {
  --bg: #f0f4fa;
  --bg-elevated: #ffffff;
  --sidebar: #ffffff;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #dbeafe;
  --success: #16a34a;
  --success-soft: #dcfce7;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --warning: #d97706;
  --warning-soft: #fef3c7;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  --input-bg: #ffffff;
  --hover-bg: #f8fafc;
  --login-bg: linear-gradient(135deg, #eff6ff, #f8fafc);
  --bar-track: #e2e8f0;
  --toggle-border: #f1f5f9;
  --chart-grid: rgba(15, 23, 42, 0.08);
  --chart-text: #64748b;
  --radius: 16px;
}

/* Night vision / dark theme */
[data-theme="dark"] {
  --bg: #0a0e1a;
  --bg-elevated: #111827;
  --sidebar: #0f1628;
  --card: #151d32;
  --border: #24304f;
  --text: #e8edf8;
  --muted: #8b98b8;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-soft: rgba(59, 130, 246, 0.15);
  --success: #22c55e;
  --success-soft: rgba(34, 197, 94, 0.15);
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.15);
  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.15);
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
  --input-bg: #0c1222;
  --hover-bg: rgba(255, 255, 255, 0.04);
  --login-bg: radial-gradient(circle at top, #172554 0%, #0a0e1a 45%);
  --bar-track: #24304f;
  --toggle-border: rgba(255, 255, 255, 0.06);
  --chart-grid: rgba(255, 255, 255, 0.06);
  --chart-text: #8b98b8;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  font-family: Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background .25s ease, color .25s ease;
}
button, input, select, textarea { font: inherit; }
a { color: var(--accent); text-decoration: none; }
#app { min-height: 100vh; }

.shell {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  padding: 22px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  padding: 0 8px;
}
.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  color: white;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 1.1rem;
}
.brand h1 { margin: 0; font-size: 1rem; }
.brand p { margin: 2px 0 0; color: var(--muted); font-size: 0.78rem; }

.nav { display: grid; gap: 4px; flex: 1; }
.nav button {
  border: 0;
  background: transparent;
  color: var(--muted);
  text-align: left;
  padding: 11px 14px;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  transition: background .15s, color .15s;
}
.nav button.active {
  background: var(--accent-soft);
  color: var(--accent);
}
.nav button:hover { background: var(--hover-bg); color: var(--text); }

.sidebar-footer {
  padding: 12px 8px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
  display: grid;
  gap: 10px;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--hover-bg);
  border: 1px solid var(--border);
  cursor: pointer;
  color: var(--text);
  width: 100%;
  font-weight: 500;
  font-size: 0.86rem;
}
.theme-toggle:hover { border-color: var(--accent); }

.main { padding: 24px 28px 40px; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
  gap: 16px;
  flex-wrap: wrap;
}
.topbar h2 { margin: 0; font-size: 1.55rem; }
.topbar p { margin: 4px 0 0; color: var(--muted); font-size: 0.92rem; }
.topbar-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.grid { display: grid; gap: 18px; }
.grid.stats { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.grid.two { grid-template-columns: 1.4fr 1fr; }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: background .25s, border-color .25s;
}
.card h3 {
  margin: 0 0 14px;
  font-size: 0.95rem;
  font-weight: 600;
}
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.card-header h3 { margin: 0; }

.stat-card {
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--accent);
}
.stat-card.green::before { background: var(--success); }
.stat-card.red::before { background: var(--danger); }
.stat-card.amber::before { background: var(--warning); }
.stat-value { font-size: 2rem; font-weight: 700; line-height: 1.1; }
.stat-label { color: var(--muted); font-size: 0.86rem; margin-top: 6px; }
.stat-sub { color: var(--muted); font-size: 0.8rem; margin-top: 8px; }

.btn {
  border: 0;
  border-radius: 10px;
  padding: 10px 16px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background .15s, border-color .15s;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent); }
.btn-danger {
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
}
th {
  color: var(--muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  font-weight: 600;
}
tr:hover td { background: var(--hover-bg); }

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 600;
}
.monitor-feed {
  max-height: 62vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.monitor-item {
  display: grid;
  grid-template-columns: 72px 88px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  animation: monitor-in 0.35s ease;
}
@keyframes monitor-in {
  from { opacity: 0; transform: translateX(-8px); }
  to { opacity: 1; transform: translateX(0); }
}
.monitor-item.block { border-left: 4px solid var(--danger); background: var(--danger-soft); }
.monitor-item.allow { border-left: 4px solid var(--success); background: var(--success-soft); }
.monitor-item.challenge { border-left: 4px solid var(--warning); background: var(--warning-soft); }
.monitor-pulse {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  font-weight: 600;
}
.monitor-pulse .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse-dot 1.4s ease infinite;
}
.monitor-pulse.paused .dot { background: var(--muted); animation: none; }
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.85); }
}
.monitor-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.monitor-stat {
  padding: 14px 18px;
  border-radius: 12px;
  border: 1px solid var(--border);
  min-width: 120px;
}
.monitor-stat .val { font-size: 1.6rem; font-weight: 700; }
.monitor-stat.block .val { color: var(--danger); }
.monitor-stat.allow .val { color: var(--success); }
.monitor-stat.challenge .val { color: var(--warning); }

.monitor-widget-compact .monitor-feed {
  max-height: 240px;
}
.monitor-widget-compact .monitor-item {
  grid-template-columns: 64px 80px 1fr;
  padding: 10px 12px;
}
.monitor-widget .card-header {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
}
.monitor-widget .card-header h3 { margin: 0; }
.monitor-audio-hint {
  margin: 0 0 12px;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--warning);
  background: var(--warning-soft);
  color: var(--text);
  font-size: 0.88rem;
  line-height: 1.45;
}
.monitor-audio-hint[hidden] { display: none !important; }
[data-monitor-enable-audio][hidden] { display: none !important; }

.badge.block { background: var(--danger-soft); color: var(--danger); }
.badge.allow { background: var(--success-soft); color: var(--success); }
.badge.challenge { background: var(--warning-soft); color: var(--warning); }
.badge.warn { background: var(--warning-soft); color: var(--warning); }
.badge.muted { background: var(--hover-bg); color: var(--muted); }

.bar-row {
  display: grid;
  grid-template-columns: 80px 1fr 40px;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
  font-size: 0.86rem;
}
.bar-track {
  height: 8px;
  background: var(--bar-track);
  border-radius: 999px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #06b6d4);
  border-radius: 999px;
}

.form-grid { display: grid; gap: 14px; }
.form-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
label {
  display: grid;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
}
input[type="text"], input[type="password"], input[type="number"], input[type="search"], textarea, select {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  transition: border-color .15s, background .25s;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}
textarea { min-height: 110px; resize: vertical; }

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--toggle-border);
}
.toggle-row:last-child { border-bottom: 0; }
.toggle-row span { font-weight: 500; color: var(--text); }
.switch {
  width: 44px; height: 24px;
  appearance: none;
  background: var(--bar-track);
  border-radius: 999px;
  position: relative;
  cursor: pointer;
  transition: .2s;
  flex-shrink: 0;
}
.switch:checked { background: var(--accent); }
.switch::before {
  content: '';
  position: absolute;
  width: 18px; height: 18px;
  top: 3px; left: 3px;
  background: white;
  border-radius: 50%;
  transition: .2s;
}
.switch:checked::before { transform: translateX(20px); }

.section-title {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin: 0 0 12px;
  font-weight: 700;
}

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--login-bg);
  transition: background .25s;
}
.login-card {
  width: min(440px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow);
}
.login-card h1 { margin: 0 0 8px; }
.login-card p { margin: 0 0 24px; color: var(--muted); }
.login-theme-row {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 16px;
}

.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.82rem; }
.pre {
  white-space: pre-wrap;
  background: var(--hover-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  max-height: 320px;
  overflow: auto;
  font-size: 0.82rem;
  color: var(--text);
}
.empty { color: var(--muted); padding: 24px; text-align: center; }
.chart-box { height: 280px; position: relative; }

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: 10px;
  box-shadow: var(--shadow);
  z-index: 50;
  color: var(--text);
}
.toast.error { border-color: rgba(239, 68, 68, 0.4); color: var(--danger); }
.toast.success { border-color: rgba(34, 197, 94, 0.4); color: var(--success); }

.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.filter-bar input, .filter-bar select {
  min-width: 160px;
}

.country-picker {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  background: var(--hover-bg);
}
.country-picker-label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 10px;
}
.country-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 36px;
  margin-bottom: 12px;
}
.country-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.82rem;
  font-weight: 600;
}
.country-chip button {
  border: 0;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0;
}
.country-search {
  width: 100%;
  margin-bottom: 10px;
}
.country-list {
  max-height: 220px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--input-bg);
}
.country-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--toggle-border);
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text);
}
.country-option:hover { background: var(--hover-bg); }
.country-option:last-child { border-bottom: 0; }
.country-option input { width: auto; margin: 0; }
.country-option .code {
  font-weight: 700;
  min-width: 28px;
  color: var(--accent);
}
.country-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.country-empty {
  padding: 16px;
  text-align: center;
  color: var(--muted);
  font-size: 0.86rem;
}

/* File Manager */
.fm-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 18px;
  padding: 14px 18px;
}
.fm-breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  font-size: 0.9rem;
}
.fm-crumb {
  border: 0;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 6px;
}
.fm-crumb:hover { background: var(--hover-bg); }
.fm-crumb.active { color: var(--text); font-weight: 600; cursor: default; }
.fm-sep { color: var(--muted); }
.fm-toolbar-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.fm-upload-label { cursor: pointer; margin: 0; }
.fm-upload-label input { display: none; }
.fm-layout .card { min-height: 420px; }
.fm-table-wrap { max-height: 480px; overflow: auto; }
.fm-row { cursor: default; }
.fm-row.is-dir { cursor: pointer; }
.fm-row.is-dir:hover { background: var(--hover-bg); }
.fm-name { font-weight: 500; }
.fm-check { width: 36px; text-align: center; }
.fm-check input { cursor: pointer; }
.fm-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.btn-sm { padding: 6px 10px; font-size: 0.78rem; }
.fm-dropzone {
  margin: 12px 16px 16px;
  padding: 18px;
  border: 2px dashed var(--border);
  border-radius: 12px;
  text-align: center;
  color: var(--muted);
  font-size: 0.88rem;
  transition: border-color .2s, background .2s;
}
.fm-dropzone.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}
.fm-editor textarea {
  width: 100%;
  min-height: 420px;
  margin: 0;
  padding: 16px;
  border: 0;
  border-top: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  line-height: 1.5;
  resize: vertical;
  border-radius: 0 0 var(--radius) var(--radius);
}

@media (max-width: 1100px) {
  .grid.two, .grid.three, .form-grid.two { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
  .nav { grid-template-columns: repeat(2, 1fr); }
}